Electro-pneumatic type automatic pressing machine

Abstract

The invention discloses an electro-pneumatic type automatic pressing machine which is provided with an electrical control box, an air pump and a pressure device. The pressure device is provided with a top plate, a base plate, a middle plate, an air cylinder and a climbing mechanism of the air cylinder, wherein a distance between the top plate and the base plate is fixed, a distance between the middle plate and the base plate is variable, the air cylinder and the climbing mechanism are connected with the middle plate, and a workpiece pressing cavity is formed between the middle plate and the base plate. Particularly, the climbing mechanism of the air cylinder comprises at least two groups of crank arm units, wherein any one group of crank arms include a first connecting rod, a second connecting rod and a third connecting rod which are in bent connection, the first connecting rod is connected with an air cylinder piston rod, the second connecting rod is in lever connection with the top plate, the third connecting rod is connected with the middle plate, and the second connecting rod and the third connecting rod are connected with each other at the position of a piston rod retraction stroke destination to form a linear self-locking structure. By applying the electro-pneumatic type automatic pressing machine, the energy loss is saved greatly, the problem of unstable transmission is solved practically, and the mechanical transmission efficiency is improved.

Description

technical field [0001] The invention relates to a mechanical crimping device, in particular to an electro-pneumatic automatic pressure device which can save energy consumption of an air pump. Background technique [0002] In the field of mechanical processing, automatic presses are a relatively common post-processing equipment, and deep processing is performed on the initially processed molding products under the precision requirements. However, in the traditional processing process, the electro-pneumatic automatic press machine used requires continuous pressure to press the workpiece, resulting in a huge investment in processing energy consumption. Moreover, the traditional extrusion molding process uses the cylinder piston rod to push the pressure plate. Since the contact point between the piston rod and the pressure plate is located at the geometric center of the relative pressure plate and is relatively concentrated, the extrusion of the workpiece is prone to deflection ...

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Problems solved by technology

[0003] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to propose an electro-pneumatic automatic press to solve the problem of uneven extrusion transmission and reduce energy consumption

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